Land roller or pulverizer.



W. J. DUNHAM.

LAND ROLLER 0R PULVERIZER.

APPLICATION FILED SEPT. 14, 1911.

1 0821789 Patented Dec. so, 1913.

WITNESSES INVENTOR UNITED STATES P A TENT OFFICE.

WILEY JULIUS DUNHAM, OF BEREA, OHIO, ASSIGNOR TO THE DUNK- AM COMPANY,OF IBEREA, OHIO, A CORPORATION OF OHIO.

LAND .ROLLER 0R PULVERIZER.

Specification of Letters Patent.

Patented Dec. 30, 1913.

Application filed September14, .1911. Serial N 0. 649,338.

To all whom it may concern:

Be it known that I, KVILEY JULIUS DUN- HAM, a resident of Berea, in thecounty of Cuyalioga and State of Ohio, have invented a new and usefulImprovement in Land Rollers or Pulverizers, of which the following is afull, clear, and exact description, reference being had to theaccompanying drawings, forming, part of this specification, in which-Figure l is a front view partially in section of one form of my improvedroller. Fig. 2 is a section on the line II-II of Fig. 1. Fig. 3 is anenlarged view of the end of the main frame, and Fig. 4 is a plan view ofone of the oscillating journals for the shaft of one of the rollers.

This invention relates to land rollers or pulverizers and is designed toprovide a simple and efficient device of this character, in which oneroller can assume a different angle from the angle of the other roller,so that the entire surface of the ground to be rolled will be engaged bythe rollers irrespective of the irregularities of the surface thereof.

The precise nature of my invention will be best understood by referenceto the accompanying drawings, which will now be described, it beingpremised, however, that various changes may be made in the details ofconstruction and general arrangement of connections between the rollersand the main frame, without departing from the spirit and scope of myinvention, as defined in the appended claims.

In the drawings the numeral 2 designates the main frame, and 3 theroller supporting hangers at the ends thereof. Each of these bracketscomprises a main member having downwardly extending lugs 4. Connected toeach lug by means of a strap 6 is a bracket 5, the straps beingconnected to the lugs and brackets by means of bolts or rivets. Eachbracket is provided with an inwardly extending projection whichprojections are secured to each other at the central portion of thehanger, and said brackets are also provided with downwardly extendingprojections 7, having transverse openings therethrough.

Pivotally mounted in the transverse openings in the projections of eachhanger are trunnions 8 extending laterally from a shaft supportingmember 9, having a longitudinally extending opening therethrough, thecenter of said opening being in the same plane as the centers of thetrunnions 8. 10, 10 are roller or pulverizer shafts mounted in each ofsaid supporting members 9 each of which extends beyond the ends of itsrespective supporting member. Mounted 011 these shafts 10, 10 and oneach side of the respective supporting members, are the rollers orpulverizers 11, 11 and l2, 12 respectively. Loosely connected on theinner end of each of the shafts 10 is a link 13, the other ends of saidlinks being loosely connected to a draft member let extending downwardlyfrom the tongue 15. These links are arranged to relieve the strain fromthe brackets 3, and as there is sufficient freedom of motion in thevarious pivotal connections, they will permit the shafts and theirrollers to oscillate.

16, 16 are collars on the outer ends of the shafts, which are retainedin position by the cotter pins 17, for retaining the rollers on theouter ends of the shafts.

The advantages of my invention result from the provision of a landroller or pulverizer having a plurality of shafts supported intermediateof their ends, the su ports for said shafts being pivoted at their endsto hangers connected to the frame of the roller or pulverizer, saidpivots for the supports being on a line with the center of the shafts.Further, from the provision of links which are loosely connected to theinner ends of the shafts and the frame or a member connected thereto,and which links are arranged to steady the shafts and relieve thehangers from some of the strain.

I claim:

1. A land roller having a rigid frame, a tongue fixedly connected to theframe, a two armed axle supporting bracket at each end of the frame,each of said arms having an annular bearing, means for connecting botharms of each bracket to the frame, a shaft support having trunnionsjournaled in the annular bearings in the arms, a roller shaft mounted ineach of said supports, a plurality of rollers rotatably mounted on eachshaft, said rollers being located on opposite sides of the shaftsupports, and means on the ends of the shafts for retaining the rollerson the shafts; substantially as described.

2. A land roller having a built up rectangular frame, a tongue'fiXedlyconnected to the frame, a two armed axle supporting bracket rigidlyconnected to each end of the frame, a shaft support j ournaled in thearms of each of said brackets, a roller shaft mounted in each of saidsupports, a plurality of rollers mounted on each shaft, said rollersbeing located on opposite sides of the shaft supports, a draft memberfixedly connected to the tongue and extending downwardly therefrom, andlinks pivotally connected to the inner ends of the shafts and the draftmember; substantially as described.

3. A land roller frame having downwardly extending grooved lugs at eachend thereof, a sectional bearing comprising upwardly extending lugs ateach end of the main frame, said lugs having grooves in line with thegrooves in the lugs on the frame, means for connecting the sectionalmembers of each bearing to each other, straps within the grooves in thelugs in alinement with each other, and means for securing the straps tothe lugs to rigidly connect the hearings to the frame, substantially asdescribed.

In testimony whereof, I have hereunto set my hand.

WILEY J ULIUS DUNHAM.

lVitnesses:

G. A. DUNHAM, W. Gr. WI-IITLOCK.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

